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Cracking the Code: How Doctors Diagnose Sensory Loss
Published: May 18, 2024
When you can't feel parts of your body properly, it's like a mystery for doctors to solve. This article reveals the step-by-step process they use to crack the case of sensory loss.
The Sensory Examination
The sensory exam is a doctor's primary tool for investigating sensory loss. It involves testing your ability to feel touch, temperature, pain, vibration, and your sense of body position. The doctor will compare how you feel these sensations in different parts of your body. This helps them map out where the problem might be in your nervous system.
Beyond Basic Sensations
If a brain issue is suspected, doctors might test more complex sensations. These include two-point discrimination (can you tell if one or two points are touching you?), graphesthesia (can you identify numbers drawn on your skin?), and stereognosis (can you identify objects by touch alone?). These tests help pinpoint problems in specific brain areas.
High-Tech Detective Tools
When the physical exam isn't enough, doctors turn to advanced tests. Nerve conduction studies and electromyography (EMG) check how well your nerves are working. Magnetic Resonance Imaging (MRI) can reveal problems in the brain or spinal cord. Blood tests might be ordered to check for underlying conditions like diabetes or vitamin deficiencies.
Putting the Pieces Together
Diagnosing sensory loss is like solving a puzzle. Doctors combine information from your symptoms, physical exam, and test results. They look for patterns that match known conditions. Sometimes, the cause remains a mystery even after extensive testing. In these cases, doctors focus on managing symptoms and monitoring for changes.
Frequently Asked Questions
It varies; some cases are quick, others may take weeks of testing.
Most are painless; nerve tests may cause mild, brief discomfort.
Usually no special preparation is needed; your doctor will advise if necessary.
Not necessarily; your doctor will determine which are most appropriate.
Your doctor will focus on managing symptoms and monitoring for changes.
Knowledge is Power
Understanding the diagnostic process can help you feel more in control and involved in your care.
References
- England JD, et al. Evaluation of distal symmetric polyneuropathy: the role of laboratory and genetic testing (an evidence-based review). Muscle Nerve 2009; 39:116.
- England JD, et al. Evaluation of distal symmetric polyneuropathy: the role of autonomic testing, nerve biopsy, and skin biopsy (an evidence-based review). Muscle Nerve 2009; 39:106.
This article has been reviewed for accuracy by one of the licensed medical doctors working for Doctronic. Always discuss health information with your healthcare provider.
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